(19)
(11) EP 1 816 726 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
10.10.2007 Bulletin 2007/41

(43) Date of publication A2:
08.08.2007 Bulletin 2007/32

(21) Application number: 07100355.2

(22) Date of filing: 10.01.2007
(51) International Patent Classification (IPC): 
H02K 5/136(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK YU

(30) Priority: 03.02.2006 IT MI20060191

(71) Applicant: ABB Service S.r.l
20124 Milano (IT)

(72) Inventors:
  • Bodini, Piero
    20010 Vittuone (MI) (IT)
  • Osnaghi, Tiziano
    20011 Battuello frazione Corbetta (MI (IT)
  • Leone, Ivano
    20056 Trezzo sull'Adda (MI) (IT)

(74) Representative: Giavarini, Francesco et al
Zanoli & Giavarini S.r.l. Via Melchiorre Gioia, 64
20125 Milano
20125 Milano (IT)

   


(54) Explosion-proof electrical machine.


(57) Explosion-proof electrical machine comprising a rotor, a stator and an enclosure, characterized in that said enclosure comprises a first hollow body positioned around said rotor and stator and having a substantially cylindrical shape with respect to a first axis of reference, and a second hollow body having at least a portion with cylindrical configuration with respect to a second axis of reference, said second hollow body being positioned external to the first hollow body with said first and second axes of reference not coincident with each other.







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